Immobilization of new Mn(salen) complex over MCM-41 and its activity in asymmetric epoxidation of styrene

被引：106

作者：

Kim, GJ ^{[1
]}

Kim, SH ^{[1
]}

机构：

[1] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea

来源：

CATALYSIS LETTERS | 1999年 / 57卷 / 03期

关键词：

MCM-41; chiral Mn(salen) ligand; ion exchange; asymmetric epoxidation; styrene;

D O I：

10.1023/A:1019039430518

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New tetradentate chelates of bis-Schiff bases were synthesized and then these chiral salen ligands were immobilized over mesoporous MCM-41 by using the ion-exchange method. The efficiency of the chiral catalyst was examined in the asymmetric epoxidation of styrene. Chiral Mn(salen) complexes immobilized onto mesoporous MCM-41 were stable during the reaction without any leaching and exhibited relatively high enantioselectivity for epoxidation as compared with homogeneous complexes.

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页码：139 / 143

页数：5

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